Actuating mechanism for doffer combs of carding engines



(No Model.) 2 Sheets-Sheet 1.

W. P. CANNING. AGTUATING MECHANISM FOR DOFPER GOMBS 0F GARDING ENGINES.

No. 492,537. Patented Feb. 28, 1893.

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W, P. GANNING. I AOTUATING MECHANISM FOR DOFPER GOMBS 0P CARDINGENGINES.

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WITNESSES.

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UNITED STATES PATENT OFFICE.

WILLIAM PITT CANNING, OF LOWELL, MASSACHUSETTS, ASSIGNOR TO THE LOWELLMACHINE SHOP, OF SAME PLACE.

ACTUATING MECHANISM FOR DOFFER-COMBS OF CARDlNG-ENGINES.

SPECIFICATION forming part of Letters Patent No. 492,537, dated February28, 1893.

Application filed December 30,1892. Serial No. 456,771. (No model.)

T0 and whom it may concern.-

Be it known that 1, WILLIAM PITT CANNING, a citizen of the UnitedStates, residing at Lowell, in the county of Middlesex and State ofMassachusetts, have invented a certain new and useful Improvement inActuating Mechanism for Doffer-Combs of Carding-Engines, of which thefollowing is a specification, reference being had therein to theaccompanying drawings.

My invention relates to the devices which are employed for the purposeof communicating to the dofier comb of a carding engine the quickvibratory movements which cause it to comb or strip from the doffer thefleece of fibrous material that has been received thereon.

More particularly, the invention relates to the bearings for thecrank-shaft which serves for the actuation of the comb, and to thedevices for effecting the adjustment which compensates for the wear ofthe contacting surfaces of the jaws of the oscillator which is connectedto the comb-shaft, the wrist or crank-pin of the actuating crank-shaft,and the split-bearing which is fitted to the said wrist or crank-pin andplays between the said jaws. Also, it relates to the ducts for returningto the oil-well in the body of the combbox the oil which works out atthe ends of the bearings for the oscillator on the combshaft and iscollected in the chambers which are formed in the comb-box adjacent tosuch ends.

The main objects of my invention are to provide a novel and improvedmeans of effecting the adjustment aforesaid, and to provide adjustingmeans having the external parts thereof projecting but slightly from thesurface of the comb-box, and so shaped and formed as to afford verylittle opportunity for flyings to lodge and accumulate thereon.

The invention consists in certain novel and useful features ofconstruction and combinations of parts, all as is hereinafter fullyexplained, and first will be described with reference to theaccompanying drawings, and then will be particularly pointed out andclearly defined in the claims at the close of this specification;

In the drawings, Figure 1 is a View, in vertical section 011 the line A,D, E, F, G, A, of Fig. 2, of doffer-comb actuating devices embodying myinvention. Fig. 2 is aview of the same, mainly in vertical section onthe plane indicated by the line 13-13 in Fig. 1. Fig. 3 is a view inplan, partly in horizontal section on line 0-0 in Fig. 1, of certain ofthe parts which are seen in the preceding figures. Fig. 4 is a view ofcertain parts in vertical section on the plane indicated by the line BBin Fig. 1. Fig. 5 is a view showing the same parts in vertical sectionin a plane at a right angle to that of the section in Fig. 4- on theline A A of Fig. 2. Figs. 6, 7 are views showing a modification.

At is shown the comb-box, which, in practice, is secured to the framingof a card ing-engine, in a position adjacent to the doffer.

At 701 is shown the cap of the comb-box, at 7011 the plug which isfitted to the hole that is formed. in the said cap.

At 111 is shown one end of the comb-shaft, at 112 is shown theoscillator which is mounted on the said end, and at 1121 is shown thescrew by which the oscillator is secured to the comb-shaft, the end ofthe said screw bearing against the saddle shown at 1122, which isinterposed to prevent the wearing of the shaft by the screw. Thelaterally-extending cylindrical portions of the oscillator take bearing,as shown, in portions of the body and cap of the comb-box. At theopposite ends of the oscillator the chambers 7041, 7041 are formed inthe body and cover of the comb-box for the purpose of catching such oilas may work out of the bearings for the oscillator.

At 1123, 1123, are shown the two jaws of the oscillator 112, withinwhich the split-bearing 5, 5, which is placed on the wrist 101 of thecrank-shaft 10, the said wrist connecting the disks 102, 102 on the saidshaft, and the splitrbearing fitting between the said disks.

and 8 '65 jaws slides At 103 is shown the inner journal of thecrank-shaft,-and at 104. is shown the outer tapered portion of the saidshaft on which is fitted the driving pulley 105, the said pulley beingsecured in place by means of the nut I00 106 threaded on the extremeouter end 107 of the crank-shaft 10. The external lateral surfaces ofthe split-bearing 5, 5, and the inner surfaces of the jaws 1123, 1123,are formed upon an angle, as shown, so that as wear takes place betweenthe wrist 101 and the innet surfaces of the split-bearing, and alsobetween the outer surfaces of the split-bearing and the jaws of theoscillator, the parts may be brought into close contact again by theaction of this angular formation when the crank-shaft is moved endwiseand carries the split-bearing with it.

The parts so far described are of known construction.

As heretofore, the bearings for the crankshaft are contained inexteriorly-threaded bearing-pieces which are fitted to screwthreadedholes in the side-walls of the combbox. The bearing-piece 702 is formedas a bushing or sleeve, as heretofore, and the interior of the saidbearing-piece itself forms the bearing for the portion of the crankshaft which passes therethrough, the said bushing being formed with anannular chamber 707 which will catch the oil that works out around thecrank-shaft, the .said oil being returned by the duct 708 formed in thebushing 702 to the oil-well which is formed bythe cavity in the body ofthe comb-box.

In accordance with my invention the sidewalls of the body of thecomb-box are of considerable thickness, in order that the bearing pieceswhich are introduced into the holes or openings in the said side-wallsmay have support throughout a considerable part of their length. Theouter portion of the said holes or openings are screw-threaded interior]y, and the inner portions thereof are of somewhat reduced diameter. Thebearing-pieces have screw-threaded portions to fit the threaded portionsof the said holes, and plain inner portions of reduced diameter to fitthe inner portions of the holes, and are formed with the ports 706, 706.The foregoing construction provides secure support forthebearing-pieces, and insures steadiness while the crank-shaft isrotating. The spaces between the shoulders on the bearing-pieces and theshoulders on the interiors of the holes or openings form annularoil-chambers 705, 705, into which the ports 704,704 and 706, 706 open.Oil from the oil-chambers at the ends of the bearings for the oscillatorpasses through the ports 7 04, 704 to the chambers 705, 705, and thencethrough the ports 706, 706, to the oil-well in the cavity of the body ofthe comb-box.

, I construct the bearing-piece 7 03 as follows. The outer end thereofhas a flange intended to fit against the outer side of the correspondingwall of the body of the comb-box, and, as is the case with the similarflange formed on the bearing-piece 702, the said flange is formed so asto permit it to be engaged by a tool which is applied thereto for thepurpose of turning the bearing-piece. In the drawings I have shownradial holes formed in the said bunch therein.

flanges. The said outer end of the bearingpiece 703 is closed, as shownclearly in Fig. 2, and within the said bearing-piece is closely fittedthe bushing 7031, on the inner surface of which the journal 103 of thecrank-shaft takes its bearing. For the purpose of moving the crank-shaftendwise, so as to effect the transverse adjustment of the split-bearing5, 5, between the jaws 1123, 1123 of the oscillator 112, whereby playbetween the wrist 101, the split-bearing, and the said jaws is taken up,I provide as follows. At its inner end the bushing 7031 is formed with acollar 70312, and rests in contact with the adjacent disk 102, or asimilar circumferential enlargement on the crank-shaft, therebyconstituting an annular thrust-bearing. Into the collar 70312 issecurely fastened the pin 70313 which enters a passage formed in thebearing-piece 703 parallel with the axis of the crank-shaft 10. Theouter extremity of the said passage is threaded, as shown, to receivethe set-screw 70314, the end of which takes bearing against the end ofthe pin 70313, and thus, as the setscrew 70314 is turned, it actsagainst the pin 70313 to force the inner end of the bushing against thedisk 102 of the crank-shaft, thereby occasioning endwise movement of theshaft. As will be seen, the adjusting devices are entirely inclosedwithin the bearing-piece, and the projection of the outer end of thebearing-piece 703 is very slight, there being afforded thereby butlittle lodgment for flyings. Considerable trouble has been experiencedheretofore on account of the fact that the devices which have beenprovided for supporting the journal 103 of the crank-shaft, and foreffecting the lateral adjustment of the parts as herein described, andthe cap or cover which has been applied thereto, have formed acomparatively large projection extending from the side of the body ofthe combbox. On such projection flyings have collected and accumulateduntil a large bunch or ball has formed. Finally this would fall off uponthe web of fibrous material passing away from the doffer, and wouldenter with the web into the sliver, making a large dirty This ispractically prevented by the construction shown in the drawings.

For convenience, I may employ the wire 51 which is represented mostclearly in Fig.5. This wire is bent so as to fit around three sides ofthe split-bearing, it fittingin grooves formed in the two halves 5, 5 ofthe said splitbearing, and having one end thereof formed into a hook 511which is snapped into a hole drilled into one of the said halves. Thesaid wire constitutes a clasp for holding the two halves 5, 5, inposition on the wrist 101, while the parts are being assembled and theoscillator put in place.

In the reduction of my invention to practice, I may, in some embodimentsthereof, employ simply a collar orring 70312, forming an annularthrust-bearing for the disk 102, and in this case the bushing 7031 mayeither be formed separately from the said collar, or omitted. In somecases, also, the adjustingscrew 70314 will bear directly against theannular thrust-bearing instead of against a pin 7 0313. The pin 7 0313in the construction illustrated being rigidly connected with the collar70312 serves as a means of preventing the collar and bushing fromrotating.

In Figs. 6, 7 and 8 I have shown a modified construction in which thepin 70313 is not connected with the collar or ring 70312 but merelypresses against the side of the same by one of its ends. The bushing andits collar are prevented from turning by forming the exterior of thebushing and the interior of the bearing of a contour which incrosssection is irregular. In the said figures I have shown the exteriorof the bushing and the interior of the bearing made polygonal incross-section. Fig. 6 shows the bearing, bushing, &c., in. verticalsection on the line 6-6 in Fig. 7; Fig. 7 shows the same parts invertical section on the line 77 in Fig. 6; and Fig. 8 shows the same inelevation viewed from the right in Fig. 6. Other known or obvious meansof preventing the bushing from rotating may be adopted in practice.

I claim as my invention- 1. The combination with the comb-box, thecomb-shaft, the oscillator having arms formed with angularcontact-surfaces, the bearing moving between the said jaws and alsoformed with angular contact-surfaces, and the crankshaft having a wriston which the bearing is fitted, with an annular thrust-bearing restingin contact with a circumferential enlargement on the crank-shaft, abearing-piece for one journal of the crank-shaft, and adjusting devicescontained within the said bearing-piece, acting upon the annularthrust-bearing, and serving to move the crank-shaft endwise to take upwear, substantially as described.

'2. The combination with the comb-box, the comb-shaft, the oscillatorhaving arms formed with angular contact-surfaces, the bearing movingbetween the said jaws, and also formed with angular contact-surfaces,and the crankshaft having a wrist on which the bearing is fitted, withan annular thrust-bearing resting in contact with a circumferentialenlargement on the crank-shaft, a bearing-piece for one journal of thecrank-shaft having a closed outer end, and adjusting devices containedwithin the said bearing-piece, acting upon the annular thrust-bearing,and serving to move the crank-shaft endwise to take up wear,substantially as described.

3. The combination with the comb-box, the comb-shaft, the oscillatorhaving arms formed with angular contact -surfaces, the bearing movingbetween the said jaws and also formed with angular contact-surfaces, andthe crankshaft having a wrist on which the bearing is fitted, with abearing-piece for one journal of the crank-shaft, a bushing within thesaid bearing-piece resting at one end in contact with a circumferentialenlargement on the crank-shaft, and adjusting devices for said bushingcontained within the bearing-piece, serving to move the crank-shaftendwise to take up wear, substantially as described.

4. The combination with the comb-box, the comb-shaft, the oscillatorhaving arms formed with angular contact-surfaces, the bearing movingbetween the said jaws and also formed with angular contact-surfaces, andthe crankshaft havinga wrist on which the bearing is fitted, with abearing-piece for one journal of the crank-shaft, a bushing within thesaid bearing-piece resting at one end in contact with a circumferentialenlargement on the crank-shaft, and an adjusting screw contained in ahole in the bearing-piece, acting to move the. bushing, and serving tomove the crankshaft endwise to take up wear, substantially as described.

5. The combination with the comb-box, the comb-shaft, the oscillatorhaving arms formed with angular contact-surfaces, the bearing movingbetween the said jaws, and also formed with angular contact-surfaces,and the crankshaft having a wrist on which the bearing is fitted, with abearing-piece for one journal of the crank-shaft, a bushing within thesaid bearing piece, resting at one end in contact with a circumferentialenlargement on the crank-shaft, and formed with a collar, a pinconnected with the said collar and fitted to a hole in thebearing-piece, and an adj ustingscrew also fitted to the said hole,substantially as described.

6. The combination with the crank-shaft having an annular enlargement,of a bearing.

piece for one journal of the said shaft, a bushing within the saidbearing-piece, resting at one end in contact with the circumferentialenlargement, and formed with a collar, a pin connected with the saidcollar and'fitted to a hole in the bearing-piece, and an adjusting screwalso fitted to the said hole, substantially as described.

7. The combination with the comb-shaft, the oscillator, and thecrank-shaft, of the comb-box having bearings for the oscillator, andalso having the oil-chambers at the ends of such bearings, and the ports704,704, leading from such oil-chambers, and the bearingpieces fitted inholes in the sides of the combboX, and having the ports 706, the partsbeing formed to produce the annular chambers 705, 705, into which theports 704:, 704 and 706, 706 open, substantially as described.

8. The combination with the comb-shaft, the oscillator, and thecrank-shaft, of the comb-box having bearings for the oscillator,oil-chambers at the ends of such bearings, the ports 7 t, 7 04: leadingfrom such oil-chambers, and openings in the side walls thereofscrewthreaded in their outer portions and of reduced diameter in theirinner portions, and the bearing pieces fitted in the said holes, havingscrew threaded portions to fit the threaded portion of such holes andplain inner portions of reduced diameter to fit the inner portions ofthe holes, and also formed with the ports 706, 706, the spaces betweenthe shoulders on the bearing-pieces and the shoulders on the interiorsof the holes forming annular oil-chambers 705, 705 into which the ports704, 704 and 706, 706, open, substantially as described.

9. The bearing piece having the bushing and provided with means foradjusting the said bushing longitudinally therein, and also with meansfor preventing the said bushing from rotating, combined with thecomb-box in which the said bearing piece is mounted, and the crank shafthaving an annular enlargement against the side ofwhich the end of the 15bushing bears, substantially as described.

In testimony whereof Iaftix my signature in presence of two witnesses.

WVILLIAM PITT OANNING. 'Witnesses:

CHANNING WHITAKER, SAML. G. STEPHENS.

